Presented below are transactions related to Tom Brokaw, Inc. and Dan Rather Corp. Dan Rather offers cash discount terms of 2/10, n/30 to its customers.

May 10	Tom Brokaw purchased goods from Dan Rather for $15,000. The cost of the goods to Dan Rather is $3,000.
11	Tom Brokaw returned $1,500 of goods to Dan Rather (cost = $300).
19	Tom Brokaw paid the May 10 purchase, net of returns.
20	Tom Brokaw purchased goods from Dan Rather for $13,200. The cost of the goods to Dan Rather is $2,000.

As of May 31, Tom Brokaw has not paid Dan Rather for the May 20 purchase.

1: Journalize the months transactions assuming the use of a perpetual inventory system under the gross method

2: Journalize the months transactions assuming the use of a perpetual inventory system under the net method.

3: Journalize the months transactions assuming the use of a periodic inventory system under the gross method. Skip the end of the month journal entry to record COGS and update Inventory.

4: Journalize the months transactions assuming the use of a periodic inventory system under the net method. Skip the end of the month journal entry to record COGS and update Inventory